Surprisingly at 90c it isn't too bad but obviously I don't directly touch the build plate at that temperature. I use the scrape tool to lift one corner of the blue sticker and then I grab the lifted corner with a cloth after it cools down to probably 50-60c. From there I can peel it with my hand without getting burnt and I'd be glad to do a video of it just like
the one I showed for cleaning the build plate. FYI, I tried it at 60c + 70c previously but it ended up leaving a lot of the residue behind and at 90c almost all of the glue is lifted with the blue sticker.
Looking pretty sweet, can't wait to see it finished!